Ore-separator.



v A. E.. BOOKWALTBR & M; A.v DORLAND.

ORE SEPARATOR. APLIGATION FILED MAY 24, 1913.

Patentad J @HLA 6, 1914.

8 SHEETS-'SHEET 1.

1,083,481; Patented Jan. v 14 A. E. BooKWALTER L M. A. DORLAND...

ORE SEPARATOR.

APPLICATION FILED MAY 24, 1913.

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A. E. BOOKWALTER & M. A. DORLAND.

l om: slBPARAToR. APPLIOATION FILED' MAY 24, 191s..

Patented Jan. 6, 1914.

3 SHEETS-SHEET 3.

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FICE.

ALERT- E. BOOKWALTER AND MAX A. DORLAND, OF COEUR DALENE, IDAHO.

ORE-SEPARATOR.

meager.

Specification of Letters Patent.

lPatented Jan. 6, 1914.

Application tiled May 24, 1913. Serial No. 769,736.

To all whom "it may concern Be it known that we, ALBERT E. BooK- wAL'rER and MAX A. DoRLANnycitizens of the Unitedy States of America, and residents of Coeur dAlene,in-the county of Kootenai and State of Idaho, have invented certain new and useful Improvements in Ore-Separators, of which the following is a specificalllOI'l. n l This invention relates to improvements in that class of ore separators shown in -our Patent No 1,058,349, granted April 8, 1913. The object of this invention is to improve that type of ore separator and to provide means for regulating t-he force of the water to suit the particular material being operated upon.

view of a valve board.

The invention consists yin the construction and arrangement of parts hereinafter more particularly described and then definitel lpointed out by the claims at the endthcreo In theaccompanying drawings which, it will be understood represent the preferable embodiment of our invention, Figure 1 is-a side elevation with the main parts in section of a separator made in accordance with our invention. Fig. 2 is a perspective view of one of the screen trays. Fig. 3 is a'top plan view ofthe plunger. Fig. 4 is a top plan Fig, 5 is a perspective sectional. view through line A-B of Fig. 3. Fig. 6 is a similar viewl through the line C-D of Fig. 4. Fig. 7 is a vertical cross section through part of the screen compartmeht. Fig.v 8 isa perspective viewof one of the frames yin the screen compartment. Fig. 9 is a longitudinal section throu h the screenv compartment.

Reierring now to the details of the drawings by-numerals: 1, 2, 3 and 4 represent the main frame of the machine which may be constructed in any desired manner, the members 2 and 4 being connected together by.

4plunger 15.v The plunger is provided with a plunger rod 16 operated in any desirable manner. Located at the bottom of the plunger compartment and between the linings 13 and 1.4 is a .valve board 18. The plunger hasopenings provided therein each :of which is fitted with a valve of the character shown in Fig. 5, each opening in .the plunger hav1ng,'as shown in said'tigure, aA

lining ,20 provided with supporting cross bars 22 through the center' of' which ,passes a rod 24, on the bottom of which is secured a valve 26. Each end ofthe rod 24 is rovided with an adjusting device as 27'an` '28, a spring 30 being provided, thev tension of "which may be changed by adjusting either loi' the devices 27 or 28 as occasion may require. The valve board at the bottom'of thel plunger compartment is provided Withfa sefries of openings, each of which contains a Qlining 32 similar to the linings 2,0v in the plunger. Each lining 32 is provided lwith a valve 34 whose spindle 36 passes downwardly through the downwardly projecting frame 38, the spring 40 being provided to jnormally hold the valve 34 in its closed`l position. The valve board 18 also has anad- .ditional opening 42 which is providetlwith.

1a flat valve 44 c onnectedto an ,operating rod `46 provided wlth a crank 48 at Aits upper end, the plunger' betingprovided with a re` :cess 50 on one side thereof to accommodate the operating rod- 46. The construetionis such that the operator may open or close the lfiat valve 44 `by moving the crank`48 from lbelng provided to control lthe feed through the pipe 54. The plunger compartment and the screen compartment have a common bot-- tom' formed by angular boards 60 and 62 supported by angle ,pieces G4 and 68; 'the angular boards and 62 forming a hopper bottom provided with a valve. `70 through which the product may be Withdrawn.

In the screen compartment, we support a deflector tray 80 upon cleats 82, this deflector tra beinglike that shown in ,our aforesaid atent N o. 1,058,349 and therefore ,is provided with deflectors 84 operated by a vcommon connecting`- rod 86 (see Fig. 1). Underneath this deflector tray, we locate a diagonally disposed emergency screen 90, ar# 'ranged to catch the balls in case the ball screen breaks. The ball screen just referred to is designated by the numeral 92 and ,may be identical with that shown in 'oura'ore said patent, and therefore comprises a screen 94 upon which are supported a series' of balls 96. Immediately over the ball tray 92, we.

. liner particles of 4material to pass through onto the bed of balls while the gravel is held upon the screen and worked along the screen l.compartment and discharged into the next screen compartment until it is -thrown out with the tailings. The purpose of this screen 100 is to enable the stock admit-ted into the* machine, to work' throughfaster, and besides -it is not neeessary'to remove all the gravel before being admitted. The gravel does not work well if allowed to come in 'contact with the balls supported on .the screen below, and by the luse of this screen 100 coarser stock can be used. The frame of this supplemental tray 98 corresponds with the frames ofthe other trays, and Aas above stated, rests u onthe ball tray 92 and supports the ri e tray 104, to be described. The discharge end of t-he supplemental tray is'inclined, as illustrated in Fig. 2, so as to `hold back a thin bed of gravel in order that the sand and fine particles'will be washed off and down through the screen onto the layer of balls. The rilile tray 104, located above the supplemental tray, is trimmed down to fit this incline.

Theriliie tray 104 which has been described as being supported upon the supplemental tray98 is shown in perspective view in Fig. 8 and on an enlarged scale, in cross section, in Fig. 7. Generally speaking, this riflle tray 1s like that shown in our previous patent, in that it has a number of riiles 106 pivotally supported by the side walls ofthe riftle tray, the bottoms of these riles having secured to them a common connecting strip 107 so that the riftles are operated in unison.

Also similar to our aforesaid patent, the riiile tray is provided with dam boards 108 but in addition to the arts shown in our aforesaid patent the ri e tray is provided with a slime tube 110, shown particularly in Figs. 7 and 8. This slime'tube is supported by the sides of the rilile tray and is slotted alon its upper surface as indicated at 112 and as one end closed b a` lug 114, shown in dotted lines in Fig. ts other end is open so that the material assing through the slot'112 may pass out t rough the vopen end of the slime tube, through the wall of the rile tray, into an opening in the outer wall 3, from' whence the materlal may be discharged through a discharge pipe 116, see

Fig'. 7 the wall ofthe riflle tray being provided with a rubber` gasket 119, shown in Fig. 8, to aHord a tight joint between the rillie tray and theside YWall of the screen ,'compartm'ent. The slime'tube 110 is pro- -vided with a lever or handle V118 by which the slime tube may be slightly rotated to change the position ofthe slot 112.y In yother words, by moving the lever 118, the slime tube is rotatedso as to raise or llower the slot as may be desirable.' The rililes 106 force the stock down into and below the water as it is passed along through the machine, the bottoms of these 'riles holding the stock down neartheA bottomof the tray, while thetops of the rilles extend above the water and act with the dam boards to prevent the finel particles'. from floating, through without being submerged. The slime tube is locateddirectly in front of one of thedam boards so that the slime may be washedpinto the slime tube throu h its slot 112 and car ried by the water ilirough the connection and discharged into any suitable receptacle. In order to prevent the slime from clogging the tube, we prefer to employ a twisted wire 120 which is connected with the agitator eccentric in such a manner that as the eccentricv operates to give motion to the plun- 4ger rod, the wire or rod 120 will be kept in motion and thus prevent the slime from clogging the tube 110.

Generally speaking, the construction ofv -tube and the supplemental screen tray, the

action is somewhat dili'erent. In lordinary jigs, the action of the water under the stock being worked is in ank up andvdown motion, and it is upon the precipitating action that the work of a common 31g' depends. In our machines, we desire in some classes of ore a more steady upward pressure vof the water. Of course the plunger gives the water an intermittent upward pressure but .the valve arrangement is to do vaway with all lor part of the up and down alternate motion. By using the suction valves, we are enabled to use the same property of a common jig plunger to any extent we wish, but we can cut out the down suction of the water, wholly or in pai-tas we see fit, by opening or closing the valve 44, shown best in Fig. 4. Th'e action may be illustrated by a glass tube. If such a vtube of, we will say, one inch in diameter is connected with a water" hydrant by being washed over the edge o allow it to dro be re lated by the valve on the hydrant, and t e separation be made, the mineral going to the bottom of the tube a d the sand the tube. Now, our valve varrangement gives to this upward pressing column of water a more steady upward pressure than is given inv jigs of common arrangement; and if in some cases we find'it desirable to use downward suction, We can get the same by opening the suction valve 44 by means of the o erating rod- 46 and its crank or handle 48. yFhe purpose of the supplemental screen tray is 'for use more particularly in placer work than inl ore. It enables the machine td handle coarser stock and stock containing gravel that could not be used otherwise. screen holds the gravel on top and does not down 'in' contact with l"the bed of balls, an( the sand .which is dropped through is` worked the same as though this screen were not in the machine, the tailing sand being held up and worked alono' the top of the balls and discharged throng the.

aperture below the screen. B'ythe use of the slime tube, we are enabled to save the slimes by skimming it off the to oats of the water on which it instead o precipitating it. There is a certain amount of value lost in'slimes by reason of its floating oli, and our slime tubes combined with-the riiiies shown in our aforesaid patent, remove this slime and deposits it in a receptacle where it is settled and sacked as a concentrate. i

It is obvious that changes may be made without departing from the spirit of our invention, the scope of which is set forth by the appended claims.l For example, it will be manifest that valves of different arrangement and construction may be used.

What we claim as our invention is:

1. In apparatus of the character described, the combination of a screen compartment and a .plunger compartment, a yplunger and valve board and self-acting valves located in said plunger and valve board, the valve board also being provided with a manually controlled valve, substantially as described.

2. In apparatus of the character described,

. the combination with a screen compartment This anda plunger compartment@/the'v lunger k'compartment having a plunger thereln and a upward movement of the (plunger, and the valve boardbeing provide ment of theI plunger, the saidvalve board also being 'provided with a manually controlled valve,'substantiall as described.

3.4 In apparatus of the c aracter described, a screen compartment and a plunger co-acting therewithl in combinationy with a screen in said compartment and balls located on said screen, and a supplemental screen 1ocated over the' said ball screen and having its 'discharge end inclined upwardly, substantially as described. I

4. -In apparatus of the character described, a screen compartment, in combination with a riie'tray arranged in said screen compartment and having a slime tube extending across the same in a horizontal position with Aan opening therein substantially Iat the with a'series of 'valvesopenmg upon the downward movecarried oli of said liquid, said horizontal Y tube being adjustable on its axis, so that the position of said horizontal tube and its openmg of the liquid is varied, substantially as described.

5. In apparatus of the character described, a plun er compartment, a plunger and lmeans or operating the same, in combination witha screen compartment, a ritlle tray arranged in said screen compartment and having a lslime tube located horizontally therein substantially at the level of the liquid, said tube having an opening extending longitudinally therein through which the slimes enter, a discharge for said tube, and a cleaning out device in said tube operated fr'om the same means. that operate the aforesaid plunger, substantially as described.

In testimony whereof 'we aliix our signaturesin presence of two witnesses.

ALBERT E. BOOKWALTER.- MAX A. DORLAND. Witnesses:4

FRANK H. EVANS, Gno.- C. THOMSON.

may beraised or lowered as the height 

